[SOLVED] HOW TO RESET RADIO BANDS SELECTION FROM *#*#4636#*#*

Friends, I have seen many people who have faced same issue with their smartphones when they change the radio band in advance setting *#*#4636#*#* on Android. People can’t use their call services when they change the radio band.
I have decided to make a video on how to reset that settings without resetting your smartphone or without going to the service center. After watching this video you’ll be able to resolve this issue.